How do I go about displaying a message when typing in my url that the board has been disabled due to......

I know I can go to the acp and disable the board, but it seems that when I start working on a mod, then try to visit my site while working on the mod I get that 100 webs page. Can anyone help me with this?

You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot post attachments in this forum